Trolley harp



W. E. FIELDS.

TROLLEY HARP.

APPLFcATloN man lAN. 15. 192|.

Lo mmm ole/. 117,192.2.

Patented @et i7, 1222.

.STATES @FFECQ WILLIAM n. rinLDsor WooDMoN'r, MARYLAND, AssieNon or,ONE-THIRD To JED G'i'rrINes., or MONTGOMERY COUNTY, MARYLAND, Y.AND`ONE-THIRD fro orinntfns rYAvNE, or wAsiiiNeroN, Dis'rnic'i orconvirtiera.

TRQLLEY naar.

Application filed January 15, 1921. Serial No. 437,510.

To @ZZ/whom t may concern;

Be it known that l, WILLIAM E. FIELDS, a citizen of the United b'tates,residing at Woodmont, inthe county of Montgomery and State ofMaryland,have invented certain new and vuse ful `Improvements inrlrolley Harps, of which the following -is a specification.'

The present invention relates to trolley harps, vand has more particularreference to a structure of spindle mounting for a trolley wheel wherebya lubricant maybe more easily lmaintained on the journals of thespindle.

An ,object of the present invention is yto provide an improved structureof trolley harp which is relatively light in weight, is strong inconstruction, and which provides lubricant chambers and passages towhich access may be quickly had for refilling.

Another object of the invention is to provide a trolley harp havingashaft or spindle supportwhich ymay be easily and quickly opened so thattheshaft or spindle may be easily withdrawn for .separating the parts,and wherein the parts are all held in position by .a single :fasteningmeans.

'The above,-and various other objects and .advantagesof this inventionwill be in part described in and in part understood from the followingdetailed descriptionvof the present preferred embodiment, the same'being illustrated in the accompanying drawing, where- F 1 is a sideelevation ofva trolley .harp constructed in accordance with the presentinvention; y

` Fig2 is a side elevation thereof;

Fig. 3 Yis a vertical fragmentary section through .thesame on the rline3-3 of Fig. 2, ylookingin vthe direction of the arrows and with thewheel removed;

Fig.' 4 fis a 4fragmentary side elevation taken oppositely to Fig. 2 ofthe harp, show- Jing the ixedbearing; and

'F 5 is a detail perspective view of the removable bearing block lforthe harp.

Referring tothe drawing, the main body portion of the device is in theform of a vcasting having a shank 10 adapted to be `seated yin the.upper end of a trolley pole or the like and which is providedwitha pairof arms 11 and 12 branched from the upper end of the shank 10 and havingan apertured ear 13 at the juncture of the arms extending from one sideof the harp to which a cable or the like may be attached.

The arm 11 isof a hollow construction as shown to advantage in Figs. 3and L1,*and provided with side walls 14 and an inner wall 15 which issubstantially flush with the inner edges of the side walls for bracingthe same; The upper end of the arm l1 is provided with a bearing portion16 extending entirely through the arm and in which is fitteda brass orbushing 17 provided with a flange 1S upon its .inner end adapted toengage the inner wall 15 of the arm.

The arm 11 is provided with a front wall 19 above the bearing 16, thewall 19 forming together with the side walls 14C and the inner wall 15,a chamber or compartment 20 adapted to receive a lubricant. The chainber2O may be closed at its upper end by a piece .of waste 2l and the frontwall 19 has at its upper edge an inwardly projecting bar or shoulder 22beneath which the piece of .waste 21 is adapted to befpacked for holdingthe waste in the chamber 20. l i

Thewbearing 16 is provided with apassage or opening 23 leading from thecham'- ber 20 downwardly and through the bushing 17 to the interiorofthe bearing. The other arm 12 is also of hollow vconstruction and`provided with side walls 24 and an inner wall 25 flush with the inneredges of the side walls. A reinforcing web 26 extends from the rear wall25 between the vside lwalls for bracing and Yreinforcing thev arm.

Near the upper end of the arm 12 the inner wall 2 is provided with avertically extending slot 27 opening through the wall Aand into which isiitted the boss 28 of a .bearing block 29 disposed within the upper endofthe arm 12. VThe bearing block 29 is yprovided with an openingtherethrough and in which is seated a bushing or brass `3() provided onits inner end .with an annular flange 31 adapted to seat against theboss 28. v

The block 29 is .supported in the upper end of the arm 12 by the boss 28which engages upon the lupper edgefof the arm 25 .andis held fromtilting outward by .a spring per end a hook arranged to engage be neatha cross-bar 34 forming the upper end portion of the inner wall 25, theclip 32k being bent to conform to theupper end and outer side of thebearing block 29. V

rlhe lower end of the clip is curved to project inwardly beneath theblock 29 and is rei'novably held in such position by a transverse pin 35secured through the side walls 24. The bearing block 29 is provided inits upper end with a chamber 36 adapted to receive a lubricant and'whichcommunicates with the interior of the bushing 39 through a passage 37which leads downwardly through the bloclr 29 and through the bushing.

rI'he upper end of the'chamber 36 is contracted to maintain a piece ofwaste 33 therein and provided with an inwardly eX- tending' shoulderor-bead 39 to hold the The waste from accidental displacement.

`bearing block is offset inwardly at its upper end and at its inner sideto provide a shoulder 40 adapted to .seat beneath the hook 33 forholding the bearing block from rising in the arm 12.

A shaft or spindle 41 is turned down and rounded at opposite ends to fitin the bushings 17 and 30. respectively and is adapted to support agrooved wheel 42 between the arms. To assemble the parts it is onlynecessary to first position the wheel 42 between the arms and hold it inregistry with the fixed bushing 17. The shaft 41 is now inserted throughthe recess 27 in the arm 12,

)D the bushing 17.

rlhe bearing block 29 is now placed in the upper end of the arm 12 andfitted over the adjacent end of the shaft `41. The bearing block is nowseated upon the upper end of the wall 25, the hook 33 of ythe springclip is engaged beneath the bar 34, and the clip 32 is now swungdownwardly about the bearing block 29 and secured there-beneath by thepin 35.

through the wheel 42, and finally seated in ln order to lubricate thebearings, it isv only necessary to withdraw the waste 21 from'the upperend of the arm 11 and refill vthe chamber 20. The other bearing is in-:in theA lubricant.

lt will be apparent that the device is relatively vlight in weight,'isstrong and well reinforced against all shocks and strain imposed uponit, and a device wherein the lubricant chambers may ybereadily reachedfor replenishing and wherein the lubricant is maintained from splashingout during use of the device.

l do not wish to be restricted tothe size, form, and proportions of thevarious parts, and obviously changes, could be made in the constructionvherein described without departingl from the `spirit of the invention,it being only necessary 'that such changes fall within the scope of theappended claims.

What is claimed is:

l. In a trolley harp, a pair of arms, one of said arms having a fixedbearing therein and the other arm having a recess opposite said bearing,a bearingblock removably? fittingl in the recess of said second arm, ashaft seated in said bearing and in said-bearing block, a wheel mountedVon said shaft between the arms, and a spring clip removably fittingupon said second varm and engaging the bearing block for maintaining thesame in place. f A I L 2. In a trolley harp, a pair of spaced apart yarms. a fixed bearing in one arm,l a removable bearing block intheother..arm,xyield` able means for detachably holding said block inposition, a shaft fitting in said bearing and bearing block, and aywheelmounted on Y the shaft. l

3. ln a trolley harp', a pair of arms, a bearing in one arm, saidothers-armV having a recess therein opposite the bearing, a shaftadapted to be introduced through said recess and engaging atone end insaid bearing, a removable bearing block'fitting in said recess .andadapted to engage the other end of said arm, and spring means for re- 5.A. trolley vharp comprising a U-shaped 115 member having anupwardlyopening cavity in one extremity and having a bearingA therelin at thelower end of the cavity and'com'- municating therewith, the other endofsaid U-shap'ed member having a recess therein 120 opposite thebearing, a bearing bloclcremovably fitting in the recess, a shaftfitting at' one end in said bearing and at its other end in saidkbearing block, said ybearing block having an upwardly opening cavityin. its 125 upper end leading to the bearing, said cavities beingadapted to receive lubricant.- and a quantity of waste, and the .memberand the bearing block eachprovided in the cavities thereof and at theirupper edges with in- 130 Wardly projecting beads adapted to reduce theupper ends of the cavities for holding the Waste therein.

' 6. In a trolley harp, a yoke having a bearing in one side and a recessin the other side opposite the bearing, a shaft journaled at one end inthe bearing and projecting at its other end through the recess, atrolley Wheel mounted on the shaft, a bearing block removably fitting inthe recess and having a bearing adapted to receive the other end of saidshaft, a spring clip interlocking with said yoke and engaging saidbearing block to maintain the same in the recess, and means for securingsaid'clip in position.

7. In a trolley harp, a pair of arms, a bearing in one of said arms, aremovable bearing block fitted in the other arm, a shaft adapted to iitin said bearing and bearing block, spring means carried by said otherarm adapted to removably hold said bearing block'in position, a Wheelmounted onl said shaft between the pair of arms, said first arm land thebearing block each being provided at its upper end With a chamberadapted to receive a lubricant and having ducts leading from saidchambers to the bearings, said chambers also being adapted to receive aquantity of Waste, and shoulders carried by said arms adapted to engagethe Waste for holding the Waste in place whereby the lubricant isprevented from splashing out.

WILLAM E. FIELDS.

